Stylographic lettering instrument.



E. D. GAINES.

STYLOGRAPHIC LETTERING INSTRUMENT.

APPLICATION FILED SEPT-13,1917.

1 ,2? 1,45% Patented July 2, 1918,

IN VE IV TOR ATTORNEY ornion ERASMUS nnnwm GAINES, E CLINTON, IOWA.

STYLOGBAPHIG LETTERING INSTRUMENT.

' To all whom it may concern:

Be it known that I, ERASMUS DARWIN Gimme, a citizen of the United-States, residing at Clinton, in the county of Clinton and State of Iowa, have invented certain new and useful Improvements in Stylegraphic Lettering Instruments, of which the following is a specification.

My invention relates to improvements in stylographic lettering instruments and is es-' pecially adapted for use in writing or printing on boxes, packages, show cards and the like, and it will be understood that the slight changes in the form or proportion of the various parts that may be necessary to render the invention applicable to its various uses, may be resorted to without departing from the spirit of the invention or sacrificing any of the advantages thereof.

My invention relates to that class of lettering instruments having a reservoir adapted to contain a supply of ink or writing fluid, the flow of which is at all times under the control of the operator. Heretofore devices of this class have been unsatisfactory on account of the difiiculty of controlling the flow of ink and at the same time providing a flexible writing point or tip which will readily adjust itself to the inequalities of any surface on which it is desired to write. In my invention I have successfully overcome these objections and it has for its ob jects, first, to provide a stylographic lettering instrument in which the flow of writing fluid may be controlled by the operator without changing the normal writing position of the instrument in the hand.

Second, to provide a flexible writing tip which may be easily detached for cleaning, and one that will be durable and at all times allow an even flow of writing fluid.

Third, to provide an article that will be cheap to manufacture, easy to assemble, and one that will be easy to clean and keep in order. p

Further ob ects will be apparent through a study of the specification and drawings.

I attain these objects by the means illustrated in the accompanying drawings, in

I Specification of Letters Patent.

Application filed September 18, 1917. Serial No. 191,254.

. the reservoir being shown partially filled with writing fluid.

In the device as illustrated I have shown the reservolr 1 as tapering in form and being largest at the top and provided with an Patented July 2, 1918.

opening 2 for convenience in filling, the

opening is closed by means of the cap 3.

While the reservoir may be of any convenient form the tapering form shown is found to be the most practical.

The lower end of the reservoir is provided with an extension 4 forming a passage 5 through which the fluid flows to the tip 6, this extension is also tapering in form.

The tip 8 is preferably formed of soft rubber or other flexible material in order to produce a brush like eii'ect, the end being slightly rounded to form a suitable writing point. It will be understood that the pointmay be broad or narrow as desired .to produce the required width of line. The tip is provided with a sleeve 7 having a tapered opening and is adapted to engage the outside of the reservoir extension 4 and thus be held securely in place.

It will be understood that by removing the tip 6 and the cap 3 the reservoir may be very easily cleaned.

The tip 6 is provided with restricted 0 enings 9 adapted to carry the writing uid from the passage 5 to the end of thetip.

The sleeve 7 of the tip 6 is relatively thin at its upper end and thickest at the lower end of the opening 8, this is for the purpose of stifl'ening and preventing the excessive A passage 13 extends from the opening 10 downthe side of the reservoir and to a point near its lower end, this, passage is then turned outwardly and provided with a flange 14 adapted to receive a rubber 15, the bulb is provided with a hole 16 toreceive the flange 14: and thus be held securely in operative position. A small opening is provided in the bulb as shown at 1'3 and is adapted to be closfl by the finger ot the 10 is provided in the top of operator when desired to prevent the too.

vention and the specific form and construcrapid flow of writing fluid. f v

The bulb 15 is located near the ti and in a convenient'position to be operate by the finger whenthe instrument is held in th normal writing position.

When it is deslred to increase the flow the bulb is pressed the desired amount thus m creasing the pressure of 'air in the reservoir and causing the writing fluid to flow more rapidly through the hp. In writing on rough boards or boxes the holes in the 'tip may become clogged with dirt or dust and in that case a quickpressure of the finger on the. bulb forces the fiuid through the openings in the ti thereby providing a means -for eflectual y cleaning the instrument without unnecessary delay.

It will be understood that my invention may be varied in its ph sical embodiment without departing from t e scope of the inreservoir, the other end ofprovided-near the base of the reservoir wit a. valve adapted to prevent ink from enter the assage.

In writing instrument the combination with'an ink reservoir'provided with a writing tip, of an air passage tube secured along the side wall of the reservoir and into the base end of said reservoir, one en of said passage terminating near the apex' of said reservoir'and'being provided with an outwardly extending flange, aflexible bulb having an opening adapted to receive said fl and a second opening adaptedto be eiosedby the finger of the operator. e

3. In a lettering instrument the combination with an inkreservoir, of a flexible writing tip on said reservoir, said tip being provided with openings for the passage of ink, an air passage tube secured along the side wall of said reservoir andopening into the base end of the reservoir, a valve secured to the inside of said reservoir and adapted to allow air to enter the reservoir and prevent ink entering the passage, said air passage extending-to a point 'near the tip and provided with an ontwardl extending flange, a flexible bulb providwith an openin.

adapted to said flange and a secon' opening adap to be closed by the finger of the operator.

n. DARWIN Games. 

